10/20pcs Flap Discs 4 1/2 for Angle Grinder, 40 60 80 120 Grit Sanding Disc, 4.5 X 7/8 Inch Grinding Wheels Welding Tools, Aluminum Oxide Abrasive T27

10/20pcs Flap Discs 4 1/2 for Angle Grinder, 40 60 80 120 Grit Sanding Disc, 4.5 X 7/8 Inch Grinding Wheels Welding Tools, Aluminum Oxide Abrasive T27 Perfect Fit for 4.5 Inch Angle Grinders：Standard 4.5X7/8 inch size and T27 design (flat top) work seamlessly with most 4.5-inch angle grinders. Easy to install, no adapter needed—ideal for quick switching during welding or metalworking tasks. 4 Grit Options & 2 Pack Sizes for Versatile Use：Comes in 40 (coarse)、60 (medium)、80 (fine)、120 (extra-fine) grits, covering rough grinding (weld seams) to smooth sanding (metal surfaces). Choose 10pcs/20pcs packs based on usage—small packs for DIY, large packs for workshops. Aluminum Oxide for Durability & Efficiency：Made of high-hardness aluminum oxide abrasive, it resists wear and heat, lasting longer than regular sanding discs. Sharp grits remove material quickly without clogging, saving time on grinding or polishing metal.